.page-about {
  --about-num-size: clamp(40px, 5vw, 60px);
  --about-card-radius: 28px;
  --about-chip-radius: 999px;
  --about-glass-border: rgba(255, 255, 255, 0.14);
  --about-glass-bg: rgba(255, 255, 255, 0.06);
  --about-mist-border: 1px solid var(--color-mist);
  font-family: var(--font-body);
  color: var(--color-ink);
}

/* ---------- 首屏 ---------- */

.page-about .about-hero {
  position: relative;
  padding: 64px 0 88px;
  color: var(--ak-text--invert);
  background:
    radial-gradient(80% 60% at 88% 8%, rgba(255, 107, 53, 0.26) 0%, transparent 58%),
    linear-gradient(135deg, var(--color-navy-deep) 0%, #123252 46%, #0B2C4D 100%);
  overflow: hidden;
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  right: -120px;
  bottom: -80px;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 215, 0, 0.16) 0%, transparent 65%);
  pointer-events: none;
}

.page-about .about-hero .ak-container {
  position: relative;
  z-index: 1;
}

.page-about .about-hero-grid {
  display: grid;
  gap: 40px;
  margin-top: 48px;
}

.page-about .about-hero-copy h1 {
  margin-top: 12px;
  font-size: clamp(40px, 7vw, 68px);
  line-height: 1.05;
  letter-spacing: -0.02em;
}

.page-about .about-hero-copy .ak-lead {
  margin-top: 20px;
  max-width: 640px;
}

.page-about .about-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 32px;
}

.page-about .about-hero-facts {
  display: grid;
  gap: 14px;
}

.page-about .about-fact-card {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 12px;
  padding: 20px 22px;
  border-radius: var(--about-card-radius);
  background: var(--about-glass-bg);
  border: 1px solid var(--about-glass-border);
  backdrop-filter: blur(6px);
}

.page-about .about-fact-num {
  font-family: var(--font-display);
  font-size: clamp(32px, 5vw, 52px);
  font-weight: 800;
  color: var(--color-orange);
  letter-spacing: -0.02em;
  line-height: 1;
}

.page-about .about-fact-suffix {
  font-size: 0.55em;
  font-weight: 700;
  margin-left: 2px;
}

.page-about .about-fact-label {
  color: var(--ak-text--muted);
  font-size: 15px;
  letter-spacing: 0.02em;
}

/* ---------- 品牌故事 ---------- */

.page-about .about-story {
  position: relative;
  margin-top: -24px;
  padding: 72px 0 80px;
  background: linear-gradient(180deg, var(--color-cream) 0%, #FFFFFF 100%);
  border-radius: 40px 40px 0 0;
}

.page-about .about-section-head {
  margin-bottom: 40px;
}

.page-about .about-section-head .ak-title {
  margin-top: 10px;
}

.page-about .about-section-lead {
  margin-top: 14px;
  max-width: 680px;
  color: var(--color-navy-blue);
}

.page-about .about-section-lead--light {
  color: var(--ak-text--muted);
}

.page-about .about-story-grid {
  display: grid;
  gap: 36px;
}

.page-about .about-story-copy p + p {
  margin-top: 18px;
  line-height: 1.8;
}

.page-about .about-story-principle {
  margin-top: 32px;
  padding: 24px 28px;
  background: var(--color-peach);
  border-radius: 24px;
  border-left: 6px solid var(--color-orange);
}

.page-about .about-story-principle strong {
  display: block;
  font-size: 22px;
  font-weight: 800;
  color: var(--color-navy-deep);
  line-height: 1.5;
}

.page-about .about-story-principle span {
  display: block;
  margin-top: 8px;
  font-size: 14px;
  color: var(--color-navy-blue);
  letter-spacing: 0.06em;
}

.page-about .about-story-figure {
  margin: 0;
}

.page-about .about-story-figure img,
.page-about .about-data-figure img,
.page-about .about-honor-figure img {
  display: block;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: 28px;
}

.page-about .about-story-figure img {
  width: 800px;
  height: 600px;
  aspect-ratio: 4 / 3;
}

.page-about .about-story-figure figcaption,
.page-about .about-data-figure figcaption,
.page-about .about-honor-figure figcaption {
  margin-top: 12px;
  font-size: 13px;
  color: #8395A8;
  letter-spacing: 0.04em;
}

/* ---------- 橙色分隔条 ---------- */

.page-about .about-band {
  background: var(--color-orange);
  color: var(--color-navy-deep);
  padding: 18px 0;
  transform: skewY(-1.2deg);
}

.page-about .about-band .ak-container {
  display: flex;
  gap: 1rem;
  overflow: hidden;
  white-space: nowrap;
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 800;
  letter-spacing: 0.3em;
}

.page-about .about-band span {
  flex: 0 0 auto;
}

/* ---------- 数据与规模 ---------- */

.page-about .about-data {
  position: relative;
  padding: 84px 0 96px;
  color: var(--ak-text--invert);
  background:
    radial-gradient(70% 50% at 12% 0%, rgba(255, 215, 0, 0.08) 0%, transparent 52%),
    var(--color-navy-deep);
  overflow: hidden;
}

.page-about .about-dashboard {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}

.page-about .about-dash-item {
  padding: 24px 20px;
  border-radius: 24px;
  background: var(--about-glass-bg);
  border: 1px solid var(--about-glass-border);
  display: flex;
  flex-direction: column;
}

.page-about .about-dash-num {
  font-family: var(--font-display);
  font-size: var(--about-num-size);
  font-weight: 800;
  line-height: 1;
  color: var(--color-orange);
  letter-spacing: -0.02em;
}

.page-about .about-dash-label {
  margin-top: 14px;
  font-weight: 700;
  color: #FFFFFF;
  font-size: 16px;
}

.page-about .about-dash-desc {
  margin-top: 8px;
  font-size: 13px;
  color: var(--ak-text--muted);
  line-height: 1.5;
}

.page-about .about-data-grid {
  display: grid;
  gap: 36px;
  margin-top: 56px;
}

.page-about .about-data-text h3 {
  font-size: 26px;
  font-weight: 800;
  color: #FFFFFF;
  margin: 0 0 18px;
  letter-spacing: -0.01em;
}

.page-about .about-data-text p {
  color: var(--ak-text--muted);
  line-height: 1.8;
  font-size: 16px;
}

.page-about .about-data-text p + p {
  margin-top: 16px;
}

.page-about .about-data-text .ak-btn {
  margin-top: 28px;
}

.page-about .about-data-figure img {
  width: 800px;
  height: 500px;
  aspect-ratio: 8 / 5;
}

/* ---------- 发展里程碑 ---------- */

.page-about .about-milestones {
  padding: 84px 0 96px;
  background: linear-gradient(180deg, #FFFFFF 0%, var(--color-cream) 100%);
}

.page-about .about-timeline ol {
  list-style: none;
  margin: 0 0 40px;
  padding: 0 0 8px;
  display: flex;
  gap: 10px;
  overflow-x: auto;
  scrollbar-width: none;
}

.page-about .about-timeline ol::-webkit-scrollbar {
  display: none;
}

.page-about .about-timeline li {
  flex: 0 0 auto;
}

.page-about .about-timeline-item {
  display: block;
  padding: 10px 20px;
  border-radius: var(--about-chip-radius);
  background: #FFFFFF;
  border: 1px solid var(--color-mist);
  color: var(--color-navy-blue);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 15px;
  text-decoration: none;
  letter-spacing: 0.04em;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.page-about .about-timeline-item:hover {
  border-color: var(--color-orange);
}

.page-about .about-timeline-item.is-active {
  background: var(--color-orange);
  border-color: var(--color-orange);
  color: #FFFFFF;
}

.page-about .about-milestone-card {
  padding: 30px 26px;
  background: #FFFFFF;
  border: 1px solid var(--color-mist);
  border-radius: var(--about-card-radius);
  box-shadow: 0 10px 30px rgba(10, 37, 64, 0.06);
  margin-bottom: 20px;
  scroll-margin-top: 96px;
}

.page-about .about-milestone-card.is-current {
  border-color: rgba(255, 107, 53, 0.4);
  background: linear-gradient(160deg, #FFFFFF 0%, var(--color-peach) 120%);
}

.page-about .about-milestone-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.page-about .about-milestone-year {
  font-family: var(--font-display);
  font-size: 34px;
  font-weight: 800;
  color: var(--color-orange);
  letter-spacing: -0.02em;
  line-height: 1;
}

.page-about .about-milestone-card h3 {
  margin: 18px 0 10px;
  font-size: 22px;
  font-weight: 800;
  color: var(--color-navy-deep);
}

.page-about .about-milestone-card p {
  margin: 0;
  line-height: 1.75;
  color: #44576B;
  font-size: 15px;
}

/* ---------- 团队简介 ---------- */

.page-about .about-team {
  padding: 84px 0 96px;
  background:
    radial-gradient(60% 45% at 90% 8%, rgba(255, 215, 0, 0.3) 0%, transparent 55%),
    var(--color-peach);
}

.page-about .about-team-grid {
  display: grid;
  gap: 20px;
  margin-top: 8px;
}

.page-about .about-team-card {
  padding: 30px 28px;
  background: rgba(255, 255, 255, 0.82);
  border-radius: var(--about-card-radius);
  border: 1px solid rgba(255, 255, 255, 0.7);
  position: relative;
  overflow: hidden;
}

.page-about .about-team-code {
  font-family: var(--font-display);
  font-size: 54px;
  font-weight: 800;
  line-height: 1;
  color: rgba(255, 107, 53, 0.2);
  letter-spacing: -0.04em;
}

.page-about .about-team-card h3 {
  margin: 14px 0 10px;
  font-size: 21px;
  font-weight: 800;
  color: var(--color-navy-deep);
}

.page-about .about-team-card p {
  margin: 0;
  line-height: 1.7;
  color: #44576B;
  font-size: 15px;
}

.page-about .about-team-note {
  margin: 32px 0 0;
  text-align: center;
  color: #7A4A36;
  font-size: 14px;
  line-height: 1.7;
}

/* ---------- 荣誉资质 ---------- */

.page-about .about-honors {
  padding: 84px 0 96px;
  color: var(--ak-text--invert);
  background:
    radial-gradient(75% 55% at 6% 88%, rgba(255, 107, 53, 0.2) 0%, transparent 55%),
    var(--color-navy-deep);
}

.page-about .about-honors-grid {
  display: grid;
  gap: 44px;
}

.page-about .about-honor-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-about .about-honor-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  padding: 20px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.page-about .about-honor-item:first-child {
  padding-top: 8px;
}

.page-about .about-honor-icon {
  flex: 0 0 16px;
  width: 16px;
  height: 16px;
  margin-top: 6px;
  background: var(--color-yellow);
  clip-path: polygon(50% 0, 62% 38%, 100% 50%, 62% 62%, 50% 100%, 38% 62%, 0 50%, 38% 38%);
}

.page-about .about-honor-item strong {
  display: block;
  font-size: 17px;
  color: #FFFFFF;
  font-weight: 800;
}

.page-about .about-honor-item p {
  margin: 6px 0 0;
  color: var(--ak-text--muted);
  font-size: 14px;
  line-height: 1.6;
}

.page-about .about-honor-figure {
  margin: 0;
}

.page-about .about-honor-figure img {
  width: 400px;
  height: 300px;
  aspect-ratio: 4 / 3;
}

.page-about .about-honor-figure figcaption {
  color: var(--ak-text--muted);
}

/* ---------- 底部行动区 ---------- */

.page-about .about-close {
  padding: 80px 0 88px;
  background: linear-gradient(120deg, var(--color-orange) 0%, #FF9A62 42%, var(--color-navy-deep) 42.4%);
  color: var(--ak-text--invert);
}

.page-about .about-close-inner h2 {
  max-width: 620px;
}

.page-about .about-close-inner p {
  margin-top: 16px;
  color: rgba(10, 37, 64, 0.85);
  max-width: 520px;
  line-height: 1.7;
}

.page-about .about-close-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 28px;
}

/* ---------- 桌面端增强 ---------- */

@media (min-width: 860px) {

  .page-about .about-hero {
    padding: 72px 0 110px;
  }

  .page-about .about-hero-grid {
    grid-template-columns: 1.25fr 0.75fr;
    gap: 56px;
    align-items: center;
  }

  .page-about .about-hero-facts {
    grid-template-columns: 1fr;
  }

  .page-about .about-story {
    padding: 96px 0 104px;
  }

  .page-about .about-story-grid {
    grid-template-columns: 1fr 0.92fr;
    gap: 56px;
    align-items: center;
  }

  .page-about .about-story-principle {
    margin-top: 36px;
  }

  .page-about .about-data {
    padding: 100px 0 112px;
  }

  .page-about .about-dashboard {
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
  }

  .page-about .about-dash-item {
    padding: 28px 24px;
  }

  .page-about .about-data-grid {
    grid-template-columns: 1fr 1fr;
    gap: 56px;
    align-items: center;
    margin-top: 72px;
  }

  .page-about .about-milestones {
    padding: 100px 0 112px;
  }

  .page-about .about-milestone-layout {
    display: grid;
    grid-template-columns: 200px 1fr;
    gap: 56px;
    align-items: start;
  }

  .page-about .about-timeline ol {
    flex-direction: column;
    gap: 10px;
    overflow: visible;
    margin: 0;
    position: sticky;
    top: 110px;
  }

  .page-about .about-timeline-item {
    border-radius: 16px;
  }

  .page-about .about-milestone-card {
    padding: 36px 34px;
  }

  .page-about .about-team {
    padding: 100px 0 112px;
  }

  .page-about .about-team-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
  }

  .page-about .about-honors {
    padding: 100px 0 112px;
  }

  .page-about .about-honors-grid {
    grid-template-columns: 1fr 0.72fr;
    gap: 64px;
    align-items: center;
  }

  .page-about .about-close {
    padding: 96px 0 104px;
  }

  .page-about .about-close-inner {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 40px;
    align-items: center;
  }

  .page-about .about-close-actions {
    margin-top: 0;
    justify-content: flex-end;
  }
}